the circumference of a circle exceed its diameter by 135cm find the radius of circle
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Answered by
1
Circumference - Diameter = 135
=> 2 pi *r - 2r = 135
=> 2r (pi - 1) = 135
=> 2r * (22/7 - 1) = 135
=> 2r * 15 / 7 = 135
=> r = 135 * 7 / 15 * 2
=> r = 9 * 7 /2
=> r = 63/2
=> r = 31.5
Radius of circle = 31. 5 cm
=> 2 pi *r - 2r = 135
=> 2r (pi - 1) = 135
=> 2r * (22/7 - 1) = 135
=> 2r * 15 / 7 = 135
=> r = 135 * 7 / 15 * 2
=> r = 9 * 7 /2
=> r = 63/2
=> r = 31.5
Radius of circle = 31. 5 cm
Answered by
1
.let the d=x
r=x/2
circumference =x+135
2×pi×r=x+135
2×22/7×x/2=x+135
x=(x+135)×7×2/22×2
22x=7x+945
22x-7x=945
15x=945
x=63
d. =63
r=31.5
I hope this will help you
r=x/2
circumference =x+135
2×pi×r=x+135
2×22/7×x/2=x+135
x=(x+135)×7×2/22×2
22x=7x+945
22x-7x=945
15x=945
x=63
d. =63
r=31.5
I hope this will help you
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